--- A time when clean air filter Technology Co., Ltd. 

 Shanghai Science and Technology is a professional production of a time when crude purification of high efficiency filter in the high-tech industry. Over the last decade, a time when cleaning the electronics, photonics, chip, semiconductor, microelectronics and other related industries to provide a large amount of clean air filtration equipment, especially in the high-end market, dominated. Positive self-cleaning design, development, manufacturing equipment, the greatest degree of improved product quality and performance. In order to provide better solutions for clean air, positive has been committed to the development of new filter material. Main products: early effect filters, bag filters in the high efficiency air filter (%), mini folding, disposable, replaceable interior, aluminum partitions high efficiency filter, V-Bank, one convex, double convex, FFU fan filter unit, clean bench (vertical, horizontal) air shower, pass box, pressure relief valves, clean studio, clean clothes and other clean products. Welcome to your call advice and guidance!